Hyper sensitivity test to be conducted before each application :1. Cleanse a small area of skin behind the ear or the inner surface of the foream using soap or water.2. Apply a small quantity of hair color as prepared for use to the area and allow it to dry.3. After 24 hours, wash the area gently with soap and water. It no irritation or inflammation is apparent, it may be assumed that no hypersensitivity to the hair color exits.Instructions for use :• Empty entire contents of the sachet into a non-metalic bowl.• Add 60ml water and mix to uniform consistency using non-metallic bowl.• Apply to hair immediately using gloves.• Leave it on hair for 10 minutes.• Rinse with water for natural color.No need to apply shampooCaution : This product contains ingredients which may cause skin irritation / serious inflammation in certain cases and so a preliminary test according to the accompanying instructions should first be done. This product should no be used for dyeing the eyelashes or eyebrows as such usage may cause blindness.Paraphenylenediamine content after dilution is not more than 3%. In powder from it is not less than 10% (when packed).